Patent US2592985A successfully refreshed from Google Patents.
US2592985A
Expired / Lapsed
US
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Apparatus for working plastic material
Assignee: Goodrich Corp
•
Filing: 1948-10-08
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Granted: 1952-04-15
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Expires: 1968-10-08
Abstract
No abstract record available.
Inventors
- 👤 Gerald W Walrafen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:29
CPC Classifications
B; B29; B29B; B29B7/00; B29B7/30; B29B7/58; B29B7/68; Y; Y10; Y10S; Y10S425/00; Y10S425/235
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1998866A
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US2277313A
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US2393058A
Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |